Chelsea have announced that they have reached an agreement with Atletico Madrid to sign Diego Costa, after meeting the buy-out clause for the Brazil-born Spain international worth a reported £32m.

The 25-year-old passed a medical at Stamford Bridge before the start of the World Cup, and becomes the second Spain international after Cesc Fabregas to join Jose Mourinho's side this summer.

A Chelsea statement read: “Chelsea Football Club can confirm an agreement has been reached with Atletico Madrid for the transfer of Diego Costa, with Chelsea meeting the buy-out clause for the Spanish international.”